Revert "Add pthread_self function prototype and make it speculatable."

This reverts commit 143d7445b5dfa2f6d6c45bdbe0433d9fc531be21.

Build breaking

llvm-svn: 303496

1 files changed, 0 insertions, 12 deletions

diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
index cf345325254..ebde1f9a17d 100644
--- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
@@ -38,7 +38,6 @@ STATISTIC(NumNoCapture, "Number of arguments inferred as nocapture");
 STATISTIC(NumReadOnlyArg, "Number of arguments inferred as readonly");
 STATISTIC(NumNoAlias, "Number of function returns inferred as noalias");
 STATISTIC(NumNonNull, "Number of function returns inferred as nonnull returns");
-STATISTIC(NumSpeculatable, "Number of functions inferred as speculatable");
 
 static bool setDoesNotAccessMemory(Function &F) {
   if (F.doesNotAccessMemory())
@@ -72,14 +71,6 @@ static bool setDoesNotThrow(Function &F) {
   return true;
 }
 
-static bool setSpeculatable(Function &F) {
-  if (F.isSpeculatable())
-    return false;
-  F.setSpeculatable();
-  ++NumSpeculatable;
-  return true;
-}
-
 static bool setRetDoesNotAlias(Function &F) {
   if (F.hasAttribute(AttributeList::ReturnIndex, Attribute::NoAlias))
     return false;
@@ -539,9 +530,6 @@ bool llvm::inferLibFuncAttributes(Function &F, const TargetLibraryInfo &TLI) {
     Changed |= setOnlyReadsMemory(F, 0);
     Changed |= setOnlyReadsMemory(F, 1);
     return Changed;
-  case LibFunc_pthread_self:
-    Changed |= setSpeculatable(F);
-    return Changed;
   case LibFunc_vfscanf:
     Changed |= setDoesNotThrow(F);
     Changed |= setDoesNotCapture(F, 0);